Nanocrystallization induced by quasi-static fracture of metallic glasses at room temperature |
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| Authors: | JT Fan SX Mao BL Shen A Inoue |
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| Institution: | 1. Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Science , Shenyang, P.R. China jtfan@imr.ac.cn;3. Department of Mechanical Engineering , University of Pittsburgh , Pittsburgh, PA, USA;4. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo, P.R. China;5. Institute for Materials Research, Tohoku University , Sendai, Japan;6. Institute for Materials Research, Tohoku University , Sendai, Japan |
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| Abstract: | Nanoparticles on the fracture surfaces of Co- and Fe-based metallic glasses during quasi-static compression at room temperature have been observed using a high-resolution scanning electron microscope. In terms of the differential scanning calorimeter, those nanoparticles were identified to be a result of nanocrystallization induced by the rapid fracture. Finally, the nanocrystallization behavior was evaluated by taking into account the super-high crack propagation rate and high elastic energy, which contributed to the local temperature rise up to the onset of crystallization, T x. |
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| Keywords: | metallic glass nanocrystallization fracture room temperature |
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